:root{--bg:#fff;--bg-alt:#f3f4f6;--fg:#17191c;--fg-muted:#5b6470;--accent:#fff200;--on-accent:#1b1d21;--danger:#ff5b55;--border:#e4e7ec;font-family:Inter,-apple-system,Segoe UI,sans-serif;font-size:14px}:root[data-theme=dark]{--bg:#121316;--bg-alt:#1c1e22;--fg:#f3f5f8;--fg-muted:#9aa3ad;--border:#2a2d33}*{box-sizing:border-box}body{background:var(--bg);color:var(--fg);margin:0}:root[data-theme=dark] body{background-image:linear-gradient(#121316d1,#121316ed),url(/widget/betonwand.jpg);background-position:50%;background-repeat:no-repeat;background-size:cover}.app{height:100vh;display:flex}.sidebar{border-right:1px solid var(--border);background:var(--bg-alt);flex-direction:column;flex-shrink:0;gap:2px;width:200px;padding:8px;display:flex;overflow-y:auto}.nav-item{text-align:left;color:var(--fg-muted);cursor:pointer;white-space:nowrap;background:0 0;border:none;border-radius:8px;align-items:center;gap:10px;padding:9px 10px;font-size:13px;display:flex}.nav-item 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